The LCM of two numbers is 840 and their HCF is 7. If one of the numbers is 56, find the other.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 105.
We know that,
⇒ a × b = LCM × HCF
where a and b are the numbers
Now,
⇒ 56 × b = 840 × 7
⇒ b = 105
Hence, the other number is 105